This is a long and detailed post explaining the seeming paradox that 60% of hospital patients in Israel are vaccinated, which leads some to conclude that the vaccine is ineffective:
www.covid-datascience.com
Israeli data: How can efficacy vs. severe disease be strong when 60% of hospitalized are vaccinated?
A surge involving the rapidly-transmitting Delta variant in heavily vaccinated countries has led to much hand-wringing that the vaccines are not effective against Delta, or vaccine effectivenss wanes after 4-6 months. This has fueled anti-vaccine sentiment suggesting the vaccines are not...
www.covid-datascience.com